As a frum Jew, and as a psychologist, I find this thread distressing. The Mabul came about due to (non-Jewish) society’s condoning homosexuality. Hashem considers it a toeiva – and you’re defending it? There’s a big difference between honoring the tzelem elokim in every individual regardless of “lifestyle”, and forcing society to honor and accomodate alternative lifestyles at the expense of people with traditional family value, in public place, in the public educational system, etc.
Nature v. nurture is an ongoing scientific question. The brain is far more complex than scientists ever imagined – the more we learn, the more we realize how little we know. Open any basic biopsych text and you’ll see that most physiological processes are orchestrated in multiple areas of the brain – to say that parts of the brain of transgender individuals are different is politically correct but bad science. Also, it’s inconsistent to attribute all gender differences to societal/cultural factors but then purport that LBGT is genetic. I’m sure it’s very challenging for LGBTs who were wired that way (which I suspect is a much smaller percentage of the LBGT community than is being portrayed) but for frum Jews, the Torah defines right and wrong, moral and immoral, even in our 21st century “I’m OK, you’re OK society” politically correct culture.